File or rasp cuttig machine.



No. 646,696. Patented Apr. 3,4900.-

A. HESS. FILE: 0R HASP CUTTING MACHINE.

(Lpplicstion flied Aug. 30, 1899.)

4 Sheets-Sheet I.

(No Model.)

duals PETEJIS 00.. wno'ro-umm. WASHINGTON 0 c Patented Apr. 3,1900.

.1. A. ess, FILE 0R RASP'CU'T-TING MAGHINE.

(Application filed Aug. 30. 1899.) (No Model.) 4 Sheets-Sheet 2.

\\\\\-&\\\\\\\\\\\\ 17///////////////////////////////////// No. 646,698.Patented Apr. 3, I900.

' J. A. HESS.

FILE 0B HASP CUTTING IAGHINE.

(Appliea tion filed Aug 30, 1899.)

4 Sheets-$heet 3.

(In Model.)

s a r 7 1 I H H v 9 w 1 4 lg a \um Jul.

No. 646,698. Phtented Apr. 3, I900.

- .l. A. HESS.

FILE 0R HASP CUTTING MACHINE.

(Application filed Aug. 30, 1899.)

4 Sheets-Sheet 4-.

(No Model.)

Tu: norms swans co. PHOYO LITHO NITED STATES PATENT @JE ICE.

JOHN A. HESS, or PHILADELPHIA, PENNSYLVANIA.

i-ILE OR RASP CUTTI'N'G MACHINE.

SPECIFICATION forming part of Letters Patent No. 646,698, dated April 3,Application filed August 30, 1899. Serial No.- 728,937. (No model) of anovel manner of supporting and actuating the tool-carrying head, saidhead and its adjuncts reciprocating or moving in a curvilinear orarc-shaped path.

It also consists of novel means for adj ust- .ing the depth of the cutand the extent of curvilinear motion imparted to the cuttingtool.

It also consists of a novel construction of pawl-a'nd-ratchet mechanismfor imparting transverse and longitudinal movements at the properintervals to the blank, means being also provided for cutting files ofdifferent sizes, according to requirements.

It also consists of novel clutch and tripping mechanism for arrestingthe movement of the file-blank.

Figure 1 represents a perspective view of a file or rasp cuttingmachine. Fig. 2 represents a vertical sectional view showing the meansfor imparting a curvilinear motion to the cutting-tool. Fig. 3represents, on. an enlarged scale, an isometric perspective View ofthepawl-and-ratchet mechanism seen at the side of Fig. 1, but viewedfrom the rear of the latter. Fig. 4 represents, on an enlarged scale, asectional view on line 0000, Fig. 1. Fig. 5 represents a section of theclutch mechanism on line .2 2, Fig. 6. Fig. 6 repre-j sents a section online y y, Fig. 5. Figs. 7 and 8 represent side and front elevations,respectively, of the tripping mechanism.

Similar letters and numerals of reference indicate corresponding partsin the figures.

Referring to the drawings, a designates. a pulley to which power isapplied, said pulley hein g mounted upon the crank-shaft b, whichcarries the disk 0, provided with a slot (1, wherein is secured theupper end of the connecting-rod f, its lower end being secured to oneend of the knuckle 9, whose other end is secured to the member h of thebell-crankj,

spring 19, whereby said pawl is caused to en'- 1 gage saidratchet-wheel, any improper movement thereof being prevented by the dog(1.

r designates a sprocket-wheel secured to the shaft and rotating inunison therewith.

s designates a sprocket chain passing around the wheel 1 and the lowersprocketwheel 25, said chain being composed of links of varyingthickness, resulting in the alternate thick and thin portions u and 1),respectively, said chain contacting with the roller w, carried by thehead a: of the threaded rod y, screwed into the transversely-movable bede, which is mounted upon the ways Z. The roller on the head as alwayscontacts with the sprocket-chain by reason of the tension of spring 2,contained within the casing 3, one end of said spring contacting withthe adjacent wall of the plunger 4, while its opposite end contacts withthe follower 5, which is adjusted by the'threaded stem 6, said plunger4. having the portion 7 attached to or integral with the bed .2, wherebythe latter will be yieldingly retained in position.

The shaft 70 carries a sleeve provided with the oppositely-located pins8,which are adapted to'lift at the proper intervals the lever 9,fulcrumed at 10, said lever having one end of the spring 11 attachedthereto, which pulls downwardly thereon.

12 designates an arm of said lever carrying the pawl 13, adapted toengage the teeth of theratchet-wheel 14, said pawl being held inposition by the spring 15. The ratchet-wheel 14 is secured to the gear16 and revolves therewith in bearings attached to a suitable portion ofthe machine, the bearings of said gear being omitted from Fig. 3 forclearness of illustration.

17 designates a pinion meshing with the gear 16 and mounted upon theshaft 18, whose bearings are not shown.

19 designates a worm or spiral gear carried by the shaft 18 and meshingwith the pinion or spiral gear 20, which is internally threaded andengages the feed-screw 21, said pinion being held in fixed position byits engagement with the portion 22 of the bed .2.

23 designates an upper bed which is longi tudinally movable on the bed 2and provided with ways 24.

25 designates clamping devices on the bed 23, whereby the file-blank 26is held. The feed-screw 21 is provided with the handle 27 andpawl-and-ratehet mechanism 28, whereby it can be manually rotated whendesired.

29 designates boxes mounted on the cranked portion of the shaft Z) andpivotallyconnected through adjusting devices 30 with the head 31, inwhich is pivotally mounted the holder 32, which carries the punch 33,whereby the rotation of the crankshaft b raises and lowers said head,which moves in a curvilinear path by reason of the curved ways 34, saidhead being held in position by curved strips 34, secured to the block37, hereinafter referred to, one of the said strips being seen in Fig.1, and it being apparent that the housing is suitably recessed toprovide for the necessary movements of said block and strip.

37 designates a guide block pivotally mounted at 38 in a suitableportion of the housing of the machine, said guide-block having formedthereon curvilinear slideways 34, in which reciprocates the head 31,said guideblock being firmlyheld against an adjustingscrew 42 by meansof a spring 39.

41 designates a portion of the machine through which passes theadjusting-screw 42, whereby the position of the bed 37 can be adjusted.

43 designates a weight attached to the connection t-Lwhich passes over apulley or roller 45, whereby the back lash or play of the feedscrew 21is taken up.

46 designates a rod operating the clutch mechanism 47, whereby themachine can be automatically stopped.

48 designates a cushion supported on the post 19, which is adjustablevertically by means of screw 51, said cushion taking up the shock of thelever 9 in its descent.

5O designates a crank-handle for turning the shaft 7t" and wheel 1',whereby the position of the bed 2 and the blank 26 thereon can beadjusted according to requirements by the rotation of the chain 8 to theproper extent.

Figs. 5 to 8, inclusive, illustrate the automatic tripping and clutchmechanism, pulley (t having the ring 51 seated therein, between whichand the sleeve 59 are the cylinders 53, which latter are seated in therecesses 51 of said sleeve, which is secured to the reduced portion 73of the shaft 1). t

55 designates a nose on the sleeve 56, which is rotatably mounted on theenlarged portion of the shaft 0 and held in position by the ring 57,said sleeve 56 having the inwardly-projecting members 58, whose locationwith respect to the cylinders 53 will be understood from Fig. 5.

59 designates an adjustable screw on lever 60, fulcrumed at 61, whichhas secured to the end 62 one end of spring 63, the other end thereofbeing secured at 64:. The end 65 of lever 60 has the arm 46 pivotedthereto and passing through slot 67 of the bracket 68, said arm having atooth 69, which engages the bracket 68, the lower end of said arm beingadapted to be struck by the abutment 71, which is adjustable in the ways72 and held by means of nuts 73.

The parts normally appear as seen in Fig. 7, and it will be apparentthat power having been applied to the pulley a will cause it andshaft 1) to rotate, said rotation continuing until abutment 71 contactswith the end and disengages the tooth 60 from bracket 68, whereuponspring 63 will pull the bolt 59 into contact with the nose 55, wherebythe cylinders will be moved by the members 58 from the position seen inFig. 5, and the rotation of pulley a will continue, but the rotation ofshaft 1) will cease.

74 designates a spring having one end secured to the sleeve 56, Whileits other end engages the shaft 1), said spring 7t exerting a pull uponthe sleeve 56 and causing the same to rotate with the shaft 1) in thedirection indicated by the arrow 75 in Fig. 5, the projecting members 58being caused to move in a similar direction and force the cylinders 53firmly against the walls 76 and 77 of the ring 51 and sleeve 52,respectively, thereby producing a friction between said cylinders andwalls sufficient to cause the pulley a to rotate the shaft 1). \Vhen thenose 55 is brought in contact with the screw 59, the latter causes thesleeve 56 and members 58 to come to a sudden stop, which will force thecylinders 53 from their wedged positions between the walls 76 and 77 inthe enlarged spaces 78 between said walls, and the friction between thelatter and the cylinders 53 no longer existing the shaft Z1 ceases to berotated by the pulley (t. \Vhen it is desired for the pulley a totransmit motion to the shaft I), the rod 16 is pulled dowi'iwardly byhand, so as to cause the nose 69 to again engage the bracket 68, as seenin Fig. 7.

It will be apparent that my invention is equally well adapted for thecutting of files by substituting the proper tools therefor, as will befamiliar to those skilled in the art. It will also be apparent thatchanges may be made by those skilled in the art which will come withinthe scope of my invention, and I do not, therefore, desire to be limitedin every instance to the exact construction I have herein shown anddescribed.

The operation is follows: The rotation of the crank-shaft I) through theintermediate connect-ions imparts a reciprocating movement to the punch33 and connecting-rod f, the latter rocking the bell-crankj, whichcarries the pawl m, whereby the ratchet-wheell and the sprocket-wheel 0'will rotate. The

movement of the parts is so timed that while the punch 33 is movingupwardly the fileblank moves transversely a distance equal to the spacebetween a pair of teeth,whereby IIO the transverse row of punches orteeth is produced, the transverse movement of the bed a being effectedby the varying thicknesses of the links composing the chain 8, as isevident, the operation of the ratchet I being sufficient to bring thecenter of a link against the wheel after each movement of said chain,said bed .2 being held in position by the spring 2,which holds theroller w in contact with said chain. While the bed 2 is being movedtransversely to one extreme position, the pins 8 revolve, the movementbeing so timed that one of said pins will raise the lever 9, andthereby'actuate the arm 12 and pawl 13, whereby the gear 16 and pinion17 will be rotated, thereby rotating the worm 19 and pinion 20,- whichaetuates the feed-screw 21 to the required extent. By this time thesprocket-chain has traveled sufficiently to permit the transversemovement of the bed 2 and the bed 23,- carried thereby, in the oppositedirection to the desired extent, so that another'transverse row ofpunches is produced, and so on. The operation of the ratchet-and-pawlmechanisms whereby the requisite transverse and longitudinal movementsof the file-blank are produced during punching will be best understoodfrom Fig. 3, the movement of the parts being so timed that the forwardmovement of the file-blank does not occur until the transverse movementthereof is completed.

The extent of movement or travel of the head 31 can be varied bymanipulating the adjusting devices 30. By supporting the bed 37 asindicated and providing the adjustingscrew 42 the exact angle at whichthe punch 33 strikes the file-blank can be regulated.

By employing the spring 2 and chain 3, having links of varyingthicknesses, Iam enabled to impart a positive and an unvaryingtransverse movement to the bed 2. The rod 46, which actuates the clutchmechanism 47, can be located so as to be operated automatically when thebed 23 has moved to the desired extent. By the handle the shaft 75,sprocketwheel 1", and chain .9 can be actuated so as to adjust theposition of the bed z and the fileblank according to requirements, thevarious parts being adjusted, according to requirements, so thatfile-blanks of different sizes can be cut with equal facility.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a machine for cutting rasps and the like, a bed, a sprocket-chainof varying thickness, connections intermediate said bed andsprocket-chain, and means for actuating the latter.

2. In a machine for cutting rasps and the like, a support for a blank, apunch-holder, means for reciprocating said holder, means for actuatingsaid support longitudinally, and a sprocket-chain of varying thicknessfor moving said support transversely.

3. In a machine for cutting rasps and the like,a transversely-movablebed, a sprocketchain having links of varying thicknesses for actuatingsaid bed transversely, and means for operating said sprocket-chain.

4:. In a machine for cutting rasps and the like, a transversely-movablebed, a spring to actuate said bed in one direction, a sprocketchain ofvarying thickness for moving said bed against the pressure of saidspring, means for operating said chain, and means for actuating said bedlongitudinally.

5. In a machine for cutting rasps and the like,'a transversely-movablebed, a sprocketchain of varying thickness for actuating said bed, anupper bed supported on the latter, and means for actuating said upperbed longitudinally.

6. In a machine for cutting rasps and the like, a crank-shaft, aconnecting-rod actuated thereby, a shaft carrying a sprocket-wheel,pawl-and-ratchet mechanisms operated by said connecting-rod and adaptedto operate said sprocket-wheel, a sprocket-chain engaging said wheel, atransversely-movable bed actuated by said chain, and alongitudinallymovable bed supported upon said first-mentioned bed.

7. In a machine for cutting rasps and the like, a shaft, asprocket-wheel carried thereby, a-sprocket-chain en gaging said wheel,said chain having links of varying thickness, a ratchet-wheel secured tosaid shaft, a lever loose on the latter, a pawl carried by an arm ofsaid lever and engaging said wheel, said ratchet-wheel, sprocket wheeland chain moving in unison, and a bed actuated by said sprocket-chain.

8. In a machine for cutting rasps and the like, a lower bed, asprocket-chain constructed substantially as described for actuating thesame transversely, an upper bed, pawland-ratchet mechanisms actuating afeedscrew, and connections common to said feed screw and upper bed,whereby the latter is actuated longitudinally.

9. In a machine for cutting rasps and the like, an upright blockpivotally supported, means for adjusting said block, the latterhaving acurved face against which the curved back of a movable head is adaptedto contact, a punch-holder carried by said head, and means forreciprocating said head and holder.

10. In a machine for cutting rasps and the like, the combination of acrankshaft, boxes carried thereby, a head, adjusting devices common tothe latter and to said boxes, said head having a curved rear surface, acurved or concave block against which said head contacts, a springengaging said block, and an adjusting-screw for varying the position ofthe latter.

11. The combination of a crank-shaft, a head operated thereby, said headhaving a curved back adapted to coact with a block having a curved orconcave face, a tool-holder pivotally mounted in said head, and meansfor adj usting the arc of movement of said head and tool-holder.

12. The combination of a crank-shaft, a punch actuated thereby, acrank-disk carried by said shaft, a connecting-rod actuated by saidcrank-disk, a longitudinally-extending shaft, a bell-crank loose on saidshaft and actuated by said connecting-rod, a ratchetwheel fastened tosaid shaft, a pawl on one arm of said bell-crank engaging said ratchet-Wheel, a sprocket-wheel tight on said shaft, a sprocket-chain of varyingthickness engaged by said sprocket-wheel, a transversely-movable bedactuated by said sprocket-chain, a spring-pressed lever suitablyfulcrumed, a pawl carried by an arm of said lever, pins carried by saidshaft for actuating said lever, a gear having a ratchet-wheel attachedthere to, said ratchet-wheel being engaged by said last-mentioned pawl,a shaft carrying a pinion in mesh with said gear, a Worm on said shaft,an upper longitudinally-movable bed supported upon said transverselymovable bed, a feed-screw for actuating said upper bed, and a pinionengaging said Worm and operating said feed-screw.

13. The combination of upper andlower sprocket-wheels, a chain commonthereto of varying thickness, a transverselymovable bed, devicesintermediate said bed and chain, and a spring located on the oppositeside of said bed.

14. In a machine for cutting rasps and the like, a shaft carrying asprocket-Wheel, a sprocket-chain of varying thickness engaging saidWheel, paWl-and-ratchet mechanisms op erating said Wheel, a bed, devicesintermediate said bed and chain, a spring adapted to move said bed inthe direction of said chain, and means for normally rotating said shaft,so as to adjust the position of said bed.

15. In a machine for punching rasps and the like, the combination of alaterally-moving bed, a longitudinally-moving bed, the latter supportingthe blank, means for actuating said beds, a clutch mechanism, and atripping device actuated by said longitudinallymoving bed, and operatingsaid clutch mechanism.

16. In a machine for punching rasps and the like, a movable bed, adaptedto carry a blank, a reciprocating punch, means for actuating said bedand punch, a clutch mechanism and tripping devices operated by said bedfor actuating said clutch mechanism.

17. In a machine for punching rasps and the like, a rotatable shaft, aclutch mechanism carried thereby, a longitudinally-movable bed adaptedto carry a blank, and a tripping device operated by said bed and adaptedto actuate said clutch mechanism.

18. In a machine for punching rasps and the like, alongitudinally-movable bed, a reciprocating punch movable in anadjustable curvilinear path, a clutch, and tripping mechanism actuatedby said bed for operating said clutch. I

19. In a machine for punching rasps and the like, a reciprocating punch,a longitudinally-movable bed, a transversely-movablc bed, asprocket-chain of varying thickness for actuating the latter, a clutchmechanism, and a tripping device actuated by said bed for actuating saidclutch mechanism.

20. In a machine for making rasps and the like, a reciprocating punch, alongitudinally movable bed, clutch mechanism controlling the movement ofsaid punch, and tripping devices operated by said bed and adapted toactuate said clutch mechanism.

21. In a machine for cutting rasps and the like, a bed, a sprocket-chainof varying thickness located at one side of said bed, connectionsintermediate said bed and sprocketchain, and means for actuating thelatter.

22. In a machine for cutting rasps and the like, a support for a blank,a punch-holder, means for reciprocating said holder, means for actuatingsaid support longitudinally, and a sprocket-chain having links ofvarying thickness and located at one side of said support, said chainbeing adapted to move the blank and its support transversely.

23. In a machine for cutting rasps and the like, a transversely-movablebed, a sprocketchain having links of varying thickness for actuatingsaid bed transversely, said chain being located at one side of said bed,and means for operating said chain.

24. In a machine for cutting rasps and the like, a transversely-movablebed, a spring, a sprocket-chain of varying thickness for moving said bedtransversely, said chain being located at one side of said bed, meansfor moving said chain, and means for actuating said bed longitudinally.

25. In a machine for cutting rasps and the like, a bed, a chain ofvarying thickness, connections intermediate said bed andchain, means foractuating the latter, means for moving said bed transversely, apunch-holder, means for reciprocating said holder, and an adjustablecurvilinear path for said punchholder.

2(. In a machine for cutting rasps and the like, the combination of bedsmovable at right angles to each other for supporting a blank, means foractuating one of said beds in a longitudinal direction, a chain ofvarying thickness for actuating the other of said beds, a clutchmechanism, and a tripping device actuated by one of said beds andadapted to operate said clutch mechanism.

27. In a machine for cutting rasps and the like, a bed, a chain ofvarying thickness located in proximity to said bed, connectionsintermediate said bed and chain, means for actuating said chain, areciprocating punch and means for operating said punch.

28. In a machine for cutting rasps and the like, beds for supporting ablank, means for actuating said beds, a clutch mechanism, a nose on aportion of said mechanism, a lever suitably fulcrumed, an abutment onsaid lever adapted to contact with said nose, means for holding saidabutment out of the path of IIC like, a support fora blank, means foractuating said support, a clutch mechanism having a nose thereon, alever, a tension device for said lever, an adjustable screw on thelatter, a bracket, an arm having a tooth thereon adapted to engage saidbracket, and means carried by said support for engaging said arm, incombination with a reciprocating punch and means for actuating saidpunch.

JOHN A. HESS. Witnesses:

JOHN A. WYIEDERSHEIM, E. HAYWARD FAIRBANKS.

